TEMPE, Ariz. -- Rachelle Williford-Treadwell calls her daughter "my medicine."
It's not just Christine Williford's achievements on the track that renew and heal her mom. It's the way the Sun Devil freshman handles adversity. Christine and Rachelle have endured plenty of it.
Rachelle just went through a messy divorce, she watched her son and Christine's older brother, Chad, get sidetracked by drugs and land in jail, Christine suffered a major foot injury her junior year at Peoria Liberty High School that nearly derailed her athletic career, and Christine has stood by her mom through her decade-long battle with stage 2, non-Hodgkin's lymphoma -- a disease that requires between two and five doctor visits per week, a massive cocktail of daily pills and regular chemotherapy.